When Data locks up the computer, he issues a very long access code to it. Unfortunately, we see the code on the screen quite clearly - and it doesn't match exactly to what Spiner said.

Great Moment :

Finally meeting Data's creator, Noonien Soong.

Body Count :

One - Soong.

Factoid :

Brent Spiner had a busy time in this episode, playing no less than three different roles!

Plotline

Data goes crazy and hijacks the Enterprise, taking it to a meeting with a mysterious stranger and an unexpected guest. meanwhile, on the immobilised Enterprise a child lies near death and only a Starbase hospital can save him.